Reinforcement Learning and AI

If you poled a group of data scientist just a few years back about how many machine learning problem types there are you would almost certainly have gotten a binary response: problem types were clearly divided into supervised and unsupervised. Supervised: You've got labeled data (clearly defined examples). Unsupervised: You've got data but it's not labeled. See if there's a structure in there. Supervised: You've got labeled data (clearly defined examples).